NDLI: A quantitative assessment of DInSAR Time series accuracy in volcanic areas: From the first to second generation SAR sensors

Content Provider	IEEE Xplore Digital Library
Author	Manzo, M. Berardino, P. Bonano, M. Casu, F. Manunta, M. Pepe, A. Pepe, S. Sansosti, E. Solaro, G. Tizzani, P. Zeni, G. Guglielmino, F. Puglisi, G. De Martino, P. Obrizzo, F. Tammaro, U. Lanari, R.
Copyright Year	2012
Description	Author affiliation: Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Catania, Piazza Roma 2, I-95125, Italy (Guglielmino, F.; Puglisi, G.) \|\| Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Napoli, via Diocleziano 328, I-80124, Italy (De Martino, P.; Obrizzo, F.; Tammaro, U.) \|\| Istituto per il Rilevamento Elettromagnetico dell'Ambiente, CNR, via Diocleziano 328, I-80124, Napoli, Italy (Manzo, M.; Berardino, P.; Bonano, M.; Casu, F.; Manunta, M.; Pepe, A.; Pepe, S.; Sansosti, E.; Solaro, G.; Tizzani, P.; Zeni, G.; Lanari, R.)
Abstract	We perform a quantitative assessment of the accuracy of Differential SAR Interferometry (DInSAR) time series in volcanic areas, retrieved through “first” and “second generation” SAR data. In particular, we analyze the impact that the wavelengths and looking geometries may have in the DInSAR measurement retrieval depending on the radar system. To this aim, we focus on the DInSAR algorithm referred to as Small BAseline Subset (SBAS) to generate mean deformation velocity maps and corresponding time series starting from sequences of SAR images. Moreover, we consider collections of SAR data acquired by the ERS-1/2 and ENVISAT (C-band), and COSMO-SkyMed (Xband) sensors over the volcanic area of the Campi Flegrei caldera, Southern Italy. We invert these SAR data sequences through the SBAS-DInSAR technique, thus obtaining C- and X- band deformation time series that we compare to continuous GPS measurements, the latter assumed as reference. The achieved results provide, in addition to a clear picture of the surface deformation phenomena already occurred and occurring in the selected case study, relevant indications for the analysis of the SBAS-DInSAR time series accuracies in volcanic areas passing from the first to second generation SAR sensors.
Starting Page	911
Ending Page	914
File Size	339968
Page Count	4
File Format	PDF
ISBN	9781467311601
ISSN	21536996
e-ISBN	9781467311595
e-ISBN	9781467311588
DOI	10.1109/IGARSS.2012.6351410
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-07-22
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Synthetic aperture radar Interferometry Time series analysis Global Positioning System Sensors Accuracy Differential Synthetic Aperture Radar Interferometry Small BAseline Subset surface deformation
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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